linux/arch/arm/boot/dts/rk3288-veyron-minnie.dts
Douglas Anderson 123643e5c4 ARM: dts: rockchip: Specify rk3288-veyron-minnie's display timings
Just like we did for rk3288-veyron-chromebook, we want to be able to
use one of the fixed PLLs in the system to make the pixel clock for
minnie.

Specifying these timings matches us with how the display is used on
the downstream Chrome OS kernel.  See https://crrev.com/c/323211.

Unlike what we did for rk3288-veyron-chromebook, this CL actually
changes the timings (though not the pixel clock) that is used when
using the upstream kernel.  Booting up a minnie shows that it ended up
with a 66.67 MHz pixel clock but it was still using the
porches/blankings it would have wanted for a 72.5 MHz pixel clock.

NOTE: compared to the downstream kernel, this seems to cause a
slightly different result reported in the 'modetest' command on a
Chromebook.  The downstream kernel shows:
  1280x800 60 1280 1298 1330 1351 800 804 822 830 66667

With this patch we have:
  1280x800 59 1280 1298 1330 1351 800 804 822 830 66666

Specifically modetest was reporting 60 Hz on the downstream kernel but
the upstream kernel does the math and comesup with 59 (because we
actually achieve 59.45 Hz).  Also upstream doesn't round the Hz up
when converting to kHz--it seems to truncate.

ALSO NOTE: when I look at the EDID from the datasheet, I see:
  -hsync -vsync
...but it seems like we've never actually run with that so I've
continued leaving that out.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2019-07-22 01:03:55 +02:00

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// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
* Google Veyron Minnie Rev 0+ board device tree source
*
* Copyright 2015 Google, Inc
*/
/dts-v1/;
#include "rk3288-veyron-chromebook.dtsi"
/ {
model = "Google Minnie";
compatible = "google,veyron-minnie-rev4", "google,veyron-minnie-rev3",
"google,veyron-minnie-rev2", "google,veyron-minnie-rev1",
"google,veyron-minnie-rev0", "google,veyron-minnie",
"google,veyron", "rockchip,rk3288";
backlight_regulator: backlight-regulator {
compatible = "regulator-fixed";
enable-active-high;
gpio = <&gpio2 RK_PB4 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&bl_pwr_en>;
regulator-name = "backlight_regulator";
vin-supply = <&vcc33_sys>;
startup-delay-us = <15000>;
};
panel_regulator: panel-regulator {
compatible = "regulator-fixed";
enable-active-high;
gpio = <&gpio7 RK_PB6 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&lcd_enable_h>;
regulator-name = "panel_regulator";
startup-delay-us = <100000>;
vin-supply = <&vcc33_sys>;
};
vcc18_lcd: vcc18-lcd {
compatible = "regulator-fixed";
enable-active-high;
gpio = <&gpio2 RK_PB5 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&avdd_1v8_disp_en>;
regulator-name = "vcc18_lcd";
regulator-always-on;
regulator-boot-on;
vin-supply = <&vcc18_wl>;
};
volume_buttons: volume-buttons {
compatible = "gpio-keys";
pinctrl-names = "default";
pinctrl-0 = <&volum_down_l &volum_up_l>;
volum_down {
label = "Volum_down";
gpios = <&gpio5 RK_PB3 GPIO_ACTIVE_LOW>;
linux,code = <KEY_VOLUMEDOWN>;
debounce-interval = <100>;
};
volum_up {
label = "Volum_up";
gpios = <&gpio5 RK_PB2 GPIO_ACTIVE_LOW>;
linux,code = <KEY_VOLUMEUP>;
debounce-interval = <100>;
};
};
};
&backlight {
/* Minnie panel PWM must be >= 1%, so start non-zero brightness at 3 */
brightness-levels = <
0 3 4 5 6 7
8 9 10 11 12 13 14 15
16 17 18 19 20 21 22 23
24 25 26 27 28 29 30 31
32 33 34 35 36 37 38 39
40 41 42 43 44 45 46 47
48 49 50 51 52 53 54 55
56 57 58 59 60 61 62 63
64 65 66 67 68 69 70 71
72 73 74 75 76 77 78 79
80 81 82 83 84 85 86 87
88 89 90 91 92 93 94 95
96 97 98 99 100 101 102 103
104 105 106 107 108 109 110 111
112 113 114 115 116 117 118 119
120 121 122 123 124 125 126 127
128 129 130 131 132 133 134 135
136 137 138 139 140 141 142 143
144 145 146 147 148 149 150 151
152 153 154 155 156 157 158 159
160 161 162 163 164 165 166 167
168 169 170 171 172 173 174 175
176 177 178 179 180 181 182 183
184 185 186 187 188 189 190 191
192 193 194 195 196 197 198 199
200 201 202 203 204 205 206 207
208 209 210 211 212 213 214 215
216 217 218 219 220 221 222 223
224 225 226 227 228 229 230 231
232 233 234 235 236 237 238 239
240 241 242 243 244 245 246 247
248 249 250 251 252 253 254 255>;
power-supply = <&backlight_regulator>;
};
&i2c_tunnel {
battery: bq27500@55 {
compatible = "ti,bq27500";
reg = <0x55>;
};
};
&i2c3 {
status = "okay";
clock-frequency = <400000>;
i2c-scl-falling-time-ns = <50>;
i2c-scl-rising-time-ns = <300>;
touchscreen@10 {
compatible = "elan,ekth3500";
reg = <0x10>;
interrupt-parent = <&gpio2>;
interrupts = <RK_PB6 IRQ_TYPE_EDGE_FALLING>;
pinctrl-names = "default";
pinctrl-0 = <&touch_int &touch_rst>;
reset-gpios = <&gpio2 RK_PB7 GPIO_ACTIVE_LOW>;
vcc33-supply = <&vcc33_touch>;
vccio-supply = <&vcc33_touch>;
};
};
&panel {
compatible = "auo,b101ean01", "simple-panel";
power-supply= <&panel_regulator>;
/delete-node/ panel-timing;
panel-timing {
clock-frequency = <66666667>;
hactive = <1280>;
hfront-porch = <18>;
hback-porch = <21>;
hsync-len = <32>;
vactive = <800>;
vfront-porch = <4>;
vback-porch = <8>;
vsync-len = <18>;
};
};
&rk808 {
pinctrl-names = "default";
pinctrl-0 = <&pmic_int_l &dvs_1 &dvs_2>;
regulators {
vcc33_touch: LDO_REG2 {
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-name = "vcc33_touch";
regulator-state-mem {
regulator-off-in-suspend;
};
};
vcc5v_touch: SWITCH_REG2 {
regulator-name = "vcc5v_touch";
regulator-state-mem {
regulator-off-in-suspend;
};
};
};
};
&sdmmc {
disable-wp;
pinctrl-names = "default";
pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_cd_disabled &sdmmc_cd_gpio
&sdmmc_bus4>;
};
&vcc_5v {
enable-active-high;
gpio = <&gpio7 RK_PC5 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&drv_5v>;
};
&vcc50_hdmi {
enable-active-high;
gpio = <&gpio5 RK_PC3 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&vcc50_hdmi_en>;
};
&gpio0 {
gpio-line-names = "PMIC_SLEEP_AP",
"DDRIO_PWROFF",
"DDRIO_RETEN",
"TS3A227E_INT_L",
"PMIC_INT_L",
"PWR_KEY_L",
"AP_LID_INT_L",
"EC_IN_RW",
"AC_PRESENT_AP",
/*
* RECOVERY_SW_L is Chrome OS ABI. Schematics call
* it REC_MODE_L.
*/
"RECOVERY_SW_L",
"OTP_OUT",
"HOST1_PWR_EN",
"USBOTG_PWREN_H",
"AP_WARM_RESET_H",
"nFALUT2",
"I2C0_SDA_PMIC",
"I2C0_SCL_PMIC",
"SUSPEND_L",
"USB_INT";
};
&gpio2 {
gpio-line-names = "CONFIG0",
"CONFIG1",
"CONFIG2",
"",
"",
"",
"",
"CONFIG3",
"PROCHOT#",
"EMMC_RST_L",
"",
"",
"BL_PWR_EN",
"AVDD_1V8_DISP_EN",
"TOUCH_INT",
"TOUCH_RST",
"I2C3_SCL_TP",
"I2C3_SDA_TP";
};
&gpio3 {
gpio-line-names = "FLASH0_D0",
"FLASH0_D1",
"FLASH0_D2",
"FLASH0_D3",
"FLASH0_D4",
"FLASH0_D5",
"FLASH0_D6",
"FLASH0_D7",
"",
"",
"",
"",
"",
"",
"",
"",
"FLASH0_CS2/EMMC_CMD",
"",
"FLASH0_DQS/EMMC_CLKO";
};
&gpio4 {
gpio-line-names = "",
"",
"",
"",
"",
"",
"",
"",
"",
"",
"",
"",
"",
"",
"",
"",
"UART0_RXD",
"UART0_TXD",
"UART0_CTS",
"UART0_RTS",
"SDIO0_D0",
"SDIO0_D1",
"SDIO0_D2",
"SDIO0_D3",
"SDIO0_CMD",
"SDIO0_CLK",
"dev_wake",
"",
"WIFI_ENABLE_H",
"BT_ENABLE_L",
"WIFI_HOST_WAKE",
"BT_HOST_WAKE";
};
&gpio5 {
gpio-line-names = "",
"",
"",
"",
"",
"",
"",
"",
"",
"",
"Volum_Up#",
"Volum_Down#",
"SPI0_CLK",
"SPI0_CS0",
"SPI0_TXD",
"SPI0_RXD",
"",
"",
"",
"VCC50_HDMI_EN";
};
&gpio6 {
gpio-line-names = "I2S0_SCLK",
"I2S0_LRCK_RX",
"I2S0_LRCK_TX",
"I2S0_SDI",
"I2S0_SDO0",
"HP_DET_H",
"",
"INT_CODEC",
"I2S0_CLK",
"I2C2_SDA",
"I2C2_SCL",
"MICDET",
"",
"",
"",
"",
"SDMMC_D0",
"SDMMC_D1",
"SDMMC_D2",
"SDMMC_D3",
"SDMMC_CLK",
"SDMMC_CMD";
};
&gpio7 {
gpio-line-names = "LCDC_BL",
"PWM_LOG",
"BL_EN",
"TRACKPAD_INT",
"TPM_INT_H",
"SDMMC_DET_L",
/*
* AP_FLASH_WP_L is Chrome OS ABI. Schematics call
* it FW_WP_AP.
*/
"AP_FLASH_WP_L",
"EC_INT",
"CPU_NMI",
"DVS_OK",
"SDMMC_WP",
"EDP_HPD",
"DVS1",
"nFALUT1",
"LCD_EN",
"DVS2",
"VCC5V_GOOD_H",
"I2C4_SDA_TP",
"I2C4_SCL_TP",
"I2C5_SDA_HDMI",
"I2C5_SCL_HDMI",
"5V_DRV",
"UART2_RXD",
"UART2_TXD";
};
&gpio8 {
gpio-line-names = "RAM_ID0",
"RAM_ID1",
"RAM_ID2",
"RAM_ID3",
"I2C1_SDA_TPM",
"I2C1_SCL_TPM",
"SPI2_CLK",
"SPI2_CS0",
"SPI2_RXD",
"SPI2_TXD";
};
&pinctrl {
backlight {
bl_pwr_en: bl_pwr_en {
rockchip,pins = <2 RK_PB4 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
buck-5v {
drv_5v: drv-5v {
rockchip,pins = <7 RK_PC5 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
buttons {
volum_down_l: volum-down-l {
rockchip,pins = <5 RK_PB3 RK_FUNC_GPIO &pcfg_pull_up>;
};
volum_up_l: volum-up-l {
rockchip,pins = <5 RK_PB2 RK_FUNC_GPIO &pcfg_pull_up>;
};
};
hdmi {
vcc50_hdmi_en: vcc50-hdmi-en {
rockchip,pins = <5 RK_PC3 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
lcd {
lcd_enable_h: lcd-en {
rockchip,pins = <7 RK_PB6 RK_FUNC_GPIO &pcfg_pull_none>;
};
avdd_1v8_disp_en: avdd-1v8-disp-en {
rockchip,pins = <2 RK_PB5 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
pmic {
dvs_1: dvs-1 {
rockchip,pins = <7 RK_PB4 RK_FUNC_GPIO &pcfg_pull_down>;
};
dvs_2: dvs-2 {
rockchip,pins = <7 RK_PB7 RK_FUNC_GPIO &pcfg_pull_down>;
};
};
prochot {
gpio_prochot: gpio-prochot {
rockchip,pins = <2 RK_PB0 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
touchscreen {
touch_int: touch-int {
rockchip,pins = <2 RK_PB6 RK_FUNC_GPIO &pcfg_pull_none>;
};
touch_rst: touch-rst {
rockchip,pins = <2 RK_PB7 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
};